Shredding-machine or the like.



No. 757,705. PATENTED APR. 19, 1904. M. P. WILLIAMS.

SHREDDING MAG HINE OR THE LIKE.

APPLICATION FILED APR. 5, 1903.

NO MODEL.

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NO. 757,705. Patented April 19, 1904.

UNITED STATES PATENT OEEicE.

MILTON F. WILLIAMS, OF ST. LOUIS, MISSOURI, ASSIGrNOR TO IVILLIAMS PATENT" CRUSHER & PULVERIZER COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

SHREDDlNG-IVIACHINE OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 757,705, dated April 19, 1904.

Application filed April 6, 1903. Serial No. 151,351. (No model.)

TO whom it y Gone/1"! chine, said casing being provided with the Be it known that I, MILTON F. WILLIAMS, a usual operating-chamber 2 and feed-hopper 3, o

- citizen of the United States, residing at the city the rotatable beaters 4 being supported in the of St. Louis, State of Missouri, have invented operating-chamber in a well-known manner.

5 a certain new and useful Improvement in The side plates of the casing are marked 5 Shredd ing-Machines or the Like, of which the and are shown as provided with the customary following is a full, clear, and exact description, transverse supporting-plates 6, upon which 5 5 such as will enable others skilled in the art to l the main operating-shaft 7 is supported in a which it appertains to make and use the same, manner which is well understood. The

to reference being had to the accompanying breaker member or anvil is shown as a roll 8 drawings, forming part of this specification, and has stub-shafts or axles 9 projecting from in which its ends, said shafts being received in suitable 60 Figure 1 is a view partly in side elevation longitudinally-extending recesses 10 in the beand partly in transverse sectional elevation. fore-mentioned side plates 5 of the casing,

5 Fig. 2 is a front elevation. Fig; 3 is a fragsaid recesses preferably opening upon the ,Inentary view in transverse sectional elevaedge of the said casing-plates in order to tion. Fig. 4 is adetail sectional elevation on permit ready insertion and removal of the 5 about the line 4: 4: of Fig. 1, and Fig. 5 is a breaker-roll. Suitable slots or pockets 11 are fragmentary detail illustrating a portion of formed in the breaker-roll and open upon the the breaker-roll and one of its knives. periphery of the same, said slots extending This invention relates to shredding mathe length of the roll and being adapted to rechines and the like, and more particularly to ceive knives 12. Three of such knives are here 7 the breaker element or roll thereof and the shown, and the breaker-roll is circumferenmounting of the same. tially adjustable in order to bring any desired 5 One object of the present invention is to knife into proper position to cooperate with provide a convenient and efiicient mounting the heaters 4. Preferably the roll is provided for the breaker element or roll by means of with depressions or cut-away portions 13, which said roll can be readily adjusted toward which are immediately in advance of the and away from the cooperating beaters. Anknives. Thus as a piece of bark or the like 3 other object is to provide convenient and eflimoves into the machine it engages the breakercient means by which the roll can be circurnroll, and its free end is held by said roll ferentially adjusted; anda further object is slightly above the cutting edge of the knife, to provide the breaker element or roll with so that the bark does not scrape over the cutkniveswhich cooperate with the before-menting edge and dull the same. The heaters are 35 tioned heaters in order to thoroughly disinadapted to strike the bark or other material tegrate the material being acted upon. at a point intermediate the knife-edge and the To these ends and also to improve generally opposite edge of the depression 13, so that the 3 5 upon apparatus of the character indicated the said edge 14, formed between such depression invention consists in the various matters hereand the body portion of the periphery of the 4 inafter described and claimed. roll, forms a breaking edge, the material be- In the accompanying drawings the invening broken upon. this edge and upon the protlon is shown as applied to a bark-shredding jecting knife-edge. 9

' machine of a Well-known type; but it will be Preferably each knife is sharpened 'upon apparent that the invention can be conveneach of its longitudinal edges, so that each 45 iently applied to machines of other types than knife can be reversed when desired, the knives that illustrated. being held in position in their pockets in any Referring now'more particularly to the suitable manner, as by screws 15. The inner drawings, 1 represents the casing of the maend wall 16 of a pocket is preferably spaced from the cutting edge of a knife resting in such pocket, as most clearly shown in Fig. 5, so that the cutting edge of aknife in a pocket does not bear against such inner wall 16, and thus become dulled. Manifestly the knives cannot only be turned edge for edge inorder to present fresh cutting edges, but the roll can be circumferentially adjusted in order to bring a new knife into proper cooperative relation to the beaters, a dulled knife being withdrawn from its pocket, sharpened, and reinserted while one of the other knives is in operative position, thus making it unnecessary to stop the operation of the machine in order to sharpen the knives.

Pivoted upon the side plates 5 are carrierplates 17, throughwhich the shafts 9 extend and in which said shafts are journaled, said carrier-plates having segmental lower ends provided with worm-teeth 18, and suitably journaled in bearings upon said side plates are substantially longitudinally disposed shafts 19, provided with worms 20, which mesh with the said teeth 18. Said shafts are provided with sprocketgears 21, which are connected by a sprocket-chain 22, and one of the shafts being provided with a hand-wheel 23 movement of said hand-wheel serves to rotate both shafts simultaneously, whereby the pivoted carrier-plates are adjusted toward or away from the heaters and carry the breaker-roll 8 with them. In order to lock and firmly secure the carrier-plates and the breaker-roll in adjusted positions, eyebolts 24 are suitably secured to the breaker-roll or to the carrierplates, as by means of cap-screws 25 passing loosely through the eyes of the bolts and entering the ends of the shafts 9, and the threaded portions of said bolts pass through suitable openings in the before-mentioned transversely-extending casing-plates 6 and receive locking-nuts 26 upon opposite sides of said casing plates. The nuts being properly loosened, the carrier-plates and their roll can be moved; but when said nuts are tightened to clamp the casing-plates 6 between cooperating pairs of them the carrier-plates and roll are firmly held against movement. The carrier-plates 17 and the heretofore-described adjusting and locking mechanism are herein shown as applied to a roll adapted to be circumferentially adjusted and to be held in circumferentially-adjusted positions. It is apparent, however, that without departing from the spirit of the invention constantly-rotating rolls or other breaker elements can be mounted and adjusted toward and away from the beaters and locked in such adjusted positions in the manner herein described.

Mechanism is also provided for circumferentially adjusting the breaker-roll, and this is now to be considered. Upon the outwardlyprojecting hub or extended bearing 27 of one of the carrier-plates is fastened a sleeve 28, which is provided with lugs 29, and journaled in these lugs is a worm-shaft 30, having a hand-wheel 31. Non-rotatably secured upon the projecting end of one of the shafts 9 is a worm-gear 32,whose teeth mesh with the worm upon the worm-shaft 30, so that rotation of said worm-shaft causes circumferential adjustment of the roll in a manner which will be readily apparent. Preferably set-screws 33 extend through the said carrier-plates and engage the roll-shafts, whereby the roll can be locked or set in adjusted positions.

I am aware that minor changes in the construction, arrangement, and combination of the several parts of the device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of the invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

1. In a machine of the character indicated, pivotally-supported carrier-plates, a breaker member carried by said plates, said plates having segmental gears thereon, and gears cooperating with said segmental gears for adjusting said plates pivotally; substantially as described.

2. In a machine of the character indicated,

pivotally-supported carrier-plates having seg- I mental gears formed upon their ends, a breaker member supported directly upon and carried by said plates, and suitably-supported worms cooperating with said gears; substantially as described.

3. In a machine of the character indicated, a casing having transverse plates, pivotallysupported carrier plates having segmental gears upon their ends, a breaker-roll journaled in said plates, adjusting-gears cooperating with said segmental gears, eyebolts at the ends of said roll, and passing through said transverse casing-plates, andnuts upon said bolts engaging opposite sides of said casingplates; substantially as described.

l. In a machine of the character indicated, the combination with beaters, of carrier-plates adjustable toward and away from said beaters, a breaker-roll journaled in said carrierplates, and means carried by one of said plates for adjusting said roll circumferentially; substantially as described.

5. In a machine of the character indicated, the combination with beaters, of carrier-plates adjustable toward and away from said heaters, a breaker-roll journaled in said carrierplates and provided with a gear, and an adjusting-gear cooperating with said first-mentioned gear and supported upon one of said carrier-plates; substantially as described.

6. In a machine of the character indicated, the combination with beaters, of carrier-plates adjustable toward and away from said beaters, a breaker-roll journaled in said carrier-plates, a gear upon said breaker-roll, one of said carrier-plates having a hub thereon, a collar tionsso that the breaker element preserves parallelism, and pivoted revoluble heaters cooperating with said breaker element; substantially as described.

8. In a machine of the character indicated, the combination with a casing, of a grindingsurface, pivoted revoluble heaters, and a feedhopper, of hangers pivoted to the casing, a revoluble breaker element suspended by said hangers so as to be interposed between the lower edge of the hopper and the front edge of the grinding-surface, and means for ad'- justing the hangers and their carried breaker element inwardly and outwardly with respect to the revoluble heaters, said means preserving parallelism of the breaker element to its associate parts; substantially as described.

9. In a machine of the character indicated, the combination with a casing, of a grindingsurface, pivoted revolving heaters, a feedhopper, hangers pivotally mounted on the easing, a revoluhle breaker element suspended by said hangers, cutting or breaking edges carv ried by said breaker element for supporting the material at the time it is being operated upon by the revolving heaters, means for bodily adjusting the breaker element inwardly and outwardly, said means preserving parallelism of said breaker element with respect to its associate parts, and independent means for circumferentially adjusting said breaker element; substantially as described.

In testimony whereof I hereunto aflix my signature, in the presence of two witnesses, this 2d day of April, 1903.

MILTON F. WILLIAMS.

WVitnesses:

GEORGE BAKEWELL, GALEs P. MOORE. 

